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[PATCH] NOHZ: Produce debug output instead of a BUG()

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The BUG_ON() in tick_nohz_stop_sched_tick() triggers on some boxen.
Remove the BUG_ON and print information about the pending softirq
to allow better debugging of the problem.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Thomas Gleixner 2007-02-19 18:12:05 +00:00 committed by Linus Torvalds
parent 6ba9b346e1
commit bc5393a6c9
1 changed files with 3 additions and 1 deletions
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4
kernel/time/tick-sched.c
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@ -165,7 +165,9 @@ void tick_nohz_stop_sched_tick(void)
goto end; goto end;
cpu = smp_processor_id(); cpu = smp_processor_id();
BUG_ON(local_softirq_pending()); if (unlikely(local_softirq_pending()))
printk(KERN_ERR "NOHZ: local_softirq_pending %02x\n",
local_softirq_pending());
now = ktime_get(); now = ktime_get();
/* /*